Proofreading: Revision of the translation to correct typos and similar errors in the target language. Done without reference to the source language.
Word counts: Word counts are normally calculated on the source text. Exceptions are texts provided as hard copy or in non-editable format (e.g., most pdf files): for these the word count is calculated on the target text.
Rush rate: applied on all projects that involve more than 2500 words of translation, or 7500 words of editing or 10,000 words of proofreading per person, per day.
Weekend rate: applied on any project that needs to be done on Saturday, Sunday or other holiday.